By default, the Excerpt (Description) is limited to Characters. For some languages, it may cause undefine character issues like ��������������.
If you got a similar issue, try enabling Excerpt Limit In Words.
- Select the Post (Type) Block
- From the Inspector (Block Setting), navigate to Description/Expert panel
- Click Expert limit and enable In Words
It will solve the issue.
If there is still a problem then don’t hesitate to contact us.